Chusetts



(No Model.)

F. T. KINDAHL au v. A. HALLQVIST. ROGKING CHAIR.

- No, 424,114. Patented Mar. 25, 1890*.

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UNITED 'STATES PATENT OFFICE.

FREDRIOK T. KINDAHL AND VICTOR A. I-IALLQVIST, OF BOSTON, MASSA- OHUSETTS.

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SPECIFIGATION forming part of Letters Patent No. 424,114, dated March 25,' 1890.

Application filed October 1l 1889.

To all whom, t may concern:

Be it known that we, FREDRIOK T. KIN- DAHL and VICTOR A. I-IALLQvIsT, both citizens of Sweden, andresidents of Boston, in the county of Suffolk and State of Massachusetts, have jointly invented new and useful Improvements in Rocking-Chairs, of which the following, taken in connect-ion with the accompanying drawings, is a speciiication.

This invention relates to improvements in rocking; chairs; and it consists in devices for changing the inclination of the seat relative to the rockers, as will hereinafter be more fully shown and described, reference being had to the accompanying drawings, Where- Figure 1 represents a central vertical section of the improved rocking-chair. Fig. 2 represents a plan view of the base; and Fig. 3 represents a cross-section on the line X X,- shown in Fig. 1.

Similar letters refer to 'similar parts Wherever they occur on the diiferent parts of the drawings.

a` d represent the rockers, and b l? b represent the legs, secured in their lower ends to said rockers and in their upper endsl to the base-board c, as shown.

d is the seat, which is adjustable on the base-board c, for the purpose of changing the inclination of said seat according to the wishes of the occupant.

About midway on the seat d is secured the screw-bolt e, having a head e in its upper end, and said bolt is secured to the seat by means of a check-nut e on the under side of said seat, as shown in Fig. l. The lower end of said screw-bolt e passes through a perforation in the base-board c, and is provided below the latter with an adjustable thumbnut e3, as shown in said Fig. l.

To the rear portion of the seat is secured in a suitable manner the downwardly-proj ecting locking-bar f, having locking-notches or recesses f f as shown. Said bar f passes freely through a perforation c in the basepiece c, and is locked to the latter by means of the latch-piece g, pivoted at g to the baseboard c and provided with an angular proj ection g, extending through a slot c in the Serial No. 325,691. (No model.)

base-board c, by which the swinging adjustment of said latch is limited sufliciently to allow it to be locked and unlocked relative to the notched bar f.

At or near the forward end of the baseboard c is secured a spring h, the free end of which bears against the under side of the forward portion of the seat d, as shown in Fig. l. Two of such springs may be used instead of a single one without departing from the spirit of our invention.

In adjusting the position of the seat relative to the base the thumb-nut c3 is loosened, the latch--piece gis unlocked from the notched bar f, and the seat swung forward or backward on the bolt e as a fulcrum until the desired adjustment is obtained, when the latch g is swung into a corresponding notch on the bar f and the thumb-nut c3 tightened sufliciently to compress t-he spring h, that serves as a yielding cushion between the seat and base-board for the purpose of rendering the rocking motion easy and agreeable without jarring it, as is common in rigid and unyielding rockers.

The improved chair is simple in construction, is very easy in its motion, and by the device, as described, the inclination of the seat can be adjusted at will relative to the rockers to suit the requirements of the occupant.

Vhat we wish to secure by Letters Patent and claim is- In combination with the rockers a and baseboard c of a rocking-chair, the chair-seat cl, adjustable on said base-board and having a fastening-bolt e, a spring h, interposed -between said seat and base-board, and anotched locking-bar ff', with latch g for locking the seat and base-board together, substantially as and for the purpose set forth.

In testimony whereof we have signed our names to this specification, in the presence of two subscribing witnesses, on this 30th day of September, A. D. 1889.

FREDRICK T. KINDAHL. VICTOR A. HALLQVIST. Witnesses:

ALBAN ANDREN, MARTHA J. JACKSON. 

